<template>
  <div>
    <el-dialog  :title="form._id ? '修改' : '新增'" :visible.sync="dialogFormVisible"  width="400px">
      <el-form :model="form" ref="form" :rules="rules" label-width="100px">
        <el-form-item label="图片" prop="img">
          <upload
            action="/upload"
            :cicle="true"
            :width="300"
            :height="300"
            :on-success="onSuccess">
            <img style="max-width:100%;max-height:100%;" v-if="form.img" :src="form.img" class="avatar">
            <div v-else style="border:1px dashed #e4e4e4;width:100px;height:100px;line-height:100px;text-align:center;"><i class="el-icon-plus avatar-uploader-icon"></i></div>
          </upload>
          <!-- <div @click="openFile" style="overflow:hidden;width:100px;height:100px;font-size:32px;border:1px dashed #ccc;text-align:center;line-height:100px">
            <img v-if="form.img" :src="form.img"  style="max-width:100%;max-height:100%"/>
            <span v-else>+</span>
          </div>
          <input ref="file" multiple accept="image/*" type="file" @change="changeFile" style="display:none"/> -->
          <!-- <input multiple accept="image/*" type="file" @change="changeFile" style="position:absolute;margin-top:-60px;opacity:0.01"/> -->
        </el-form-item>
        <el-form-item label="标题" prop="title">
          <el-input type="text" v-model="form.title"></el-input>
        </el-form-item>
        <el-form-item label="跳转地址" prop="url">
          <el-input type="text" v-model="form.url"></el-input>
        </el-form-item>
        <el-form-item label="类型" prop="type">
          <el-select v-model="form.type" placeholder="请选择">
            <el-option
              v-for="type in types"
              :key="type.value"
              :label="type.label"
              :value="type.value"
            >
            </el-option>
          </el-select>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false" size="small"
          >取 消</el-button
        >
        <el-button @click="submit" type="primary" size="small">确 定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import api from "@/api";
import upload from "@/components/Upload";
export default {
  name: "shouyeCategoryEdit",
  components: {
    upload,
  },
  beforeRouteEnter(to, from, next) {
    // 在渲染该组件的对应路由被验证前调用
    // 不能获取组件实例 `this` ！
    // 因为当守卫执行时，组件实例还没被创建！
    //监听整个页面流程
    console.log("组件内守卫");
    next();
  },
  data() {
    return {
      dialogFormVisible: false,
      form: {
        _id: 0,
        img: "",
        type: "category",
        url: "",
        title: "",
      },
      rules: {
        img: [{ required: true, message: "图片不能为空", trigger: "blur" }],
        title: [{ required: true, message: "标题不能为空", trigger: "blur" }],
      },
      types: [
        { label: "轮播图", value: "banner" },
        { label: "分类区", value: "category" },
        { label: "为你推荐", value: "recommend" },
      ],
    };
  },
  methods: {
    //图片上传
    changeFile(e) {
      let files = e.target.files;
      let formData = new FormData();
      formData.append("file", files[0]);

      this.$http({
        url: "/upload",
        method: "POST",
        data: formData,
      }).then((res) => {
        if (res.path)
          this.form.img =
            api.baseURL + "/" + res.path.replace(/uploads/, "uploads/");
        console.log(res);
      });
    },
    openFile() {
      let fileElement = this.$refs.file;
      fileElement.click();
    },
    handleOpen(key, keyPath) {
      console.log(key, keyPath);
    },
    handleClose(key, keyPath) {
      console.log(key, keyPath);
    },
    ///新增
    add() {
      ///初始化
      this.form = {
        _id: 0,
        img: "",
        type: "banner",
        url: "",
        title: "",
      };
      this.dialogFormVisible = true;
    },
    //修改
    edit(row) {
      this.form = row;
      this.dialogFormVisible = true;
    },
    submit() {
      //校验
      this.$refs.form.validate((valid) => {
        if (valid) {
          this.form.indexId = this.form._id;
          this.$http({
            url: "/admin/index",
            method: this.form.indexId ? "PUT" : "POST", ///通过indexId判断新增还是修改
            data: this.form,
          }).then((res) => {
            if (!res.errorMsg) {
              this.dialogFormVisible = false;
              this.$emit("load", this.form.indexId ? undefined : 1); //在子组键触发访问父组件方法
              // this.getList(this.form.indexId ? undefined : 1);
            }
          });
        }
      });
    },
    onSuccess(res) {
      console.log(res);
      //拼装图片路径赋值给表单
      this.form.img = api.baseURL + "/uploads/" + res.filename;
    },
  },
  created() {},
  mounted() {},
};
</script>
<style scoped>

</style>